An fMRI Study of Satiation in Healthy Volunteers.

November 20, 2014 updated by: University of Birmingham

Satiation Attenuates BOLD Activity in Brain Regions Involved in Reward and Increases Activity in an Inhibitory Control Area: an fMRI Study in Healthy Volunteers.

To our knowledge no study has assessed the effects of a meal on neural responses to food cues and compared this with a condition simulating natural inter-meal hunger levels. This is important, as the existing literature often compares the effect of fasting to satiation, which may not reflect typical appetite processes. Thus, the purpose of this research was to examine the effect of a satiating lunch compared to a normal pre-meal state on blood oxygen level dependent (BOLD) activity in the human brain, as measured using functional magnetic resonance imaging (fMRI).

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

We hypothesized that satiation would be associated with decreased brain activity across brain regions involved in both appetite and reward such as ventromedial prefrontal cortex, orbitofrontal cortex, ventral striatum, hypothalamus, insula, amygdala and hippocampus. 16 healthy participants (8 males) were scanned on two separate test days, before and after eating a meal to satiation, or after not eating for 4 hours (satiated vs. pre-meal). fMRI BOLD signals to the sight and/or taste of the stimuli were recorded. Participants were given questionnaires to complete about their mood state and appetite before and after all scans.

Study Type

Interventional

Enrollment (Actual)

16

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United Kingdom
    • West Midlands
      • Birmingham, West Midlands, United Kingdom, B15 2TT
        • University of Birmingham

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 65 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Healthy volunteers
  • Sufficiently fluent in English to understand the task and the instructions

Exclusion Criteria:

  • Currently taking medication
  • Past or current depression/dieting,
  • Smokers
  • Food allergies
  • Diabetes
  • Pregnancy
  • BMI score outside the normal range
  • Any contraindications to fMRI scanning (e.g. pacemakers, mechanical heart valve, hip replacement, metal implants)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Other: Scanning

Repeated measures:

Satiation scan + Pre-meal scan

All participants undertook both scans
Device: MRI
Other: Satiated / Pre-meal
All participants were scanned before and after not being fed (pre-meal), and before and after being given a satiating lunch (satiated).

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Activation differences between satiated and pre-meal scan fMRI BOLD signal
Time Frame: 6 months
6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Birmingham

Collaborators

University of Oxford

Investigators

  • Principal Investigator: Jason M Thomas, MRes, University of Birmingham

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

July 1, 2010

Primary Completion (Actual)

December 1, 2010

Study Completion (Actual)

December 1, 2010

Study Registration Dates

First Submitted

November 19, 2014

First Submitted That Met QC Criteria

November 20, 2014

First Posted (Estimate)

November 21, 2014

Study Record Updates

Last Update Posted (Estimate)

November 21, 2014

Last Update Submitted That Met QC Criteria

November 20, 2014

Last Verified

November 1, 2014

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • UBirmingham

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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